March 25, 2025

Google Gemini 2.5 Pro released

Google released GeminiGoogle's family of multimodal AI models — successors to PaLM and competitors to GPT and Claude. 2.5 Pro on March 25, 2025 — a thinking model topping LMArena with strong coding, math, and a 1M-token context window.

What it was for

Gemini (language model)GeminiGoogle's family of multimodal AI models — successors to PaLM and competitors to GPT and Claude. 2.5 Pro was Google's first 2.5 thinking model: hybrid reasoningStep-by-step logical thinking in AI models — chain-of-thought before answering hard problems., native multimodality, and state-of-the-art benchmarkA standardized test suite for comparing systems — ImageNet, MLPerf, and SPEC define industry scoreboards. scores. It arrived in AI Studio and GeminiGoogle's family of multimodal AI models — successors to PaLM and competitors to GPT and Claude. Advanced as Google raced OpenAIAn AI research company — created GPT, ChatGPT, DALL-E, and the o-series reasoning models.'s o3 and AnthropicAn AI safety company — creators of the Claude family of language models.'s Claude 3.7 for developer mindshare.

Companies

  • Google

Why it's here

GeminiGoogle's family of multimodal AI models — successors to PaLM and competitors to GPT and Claude. 2.5 Pro put Google back at the top of public leaderboards for reasoningStep-by-step logical thinking in AI models — chain-of-thought before answering hard problems. models.

Why it mattered

Thinking models with million-token context became the new frontier baseline.

What it solved

TeamsMicrosoft Teams — chat, video calls, and Office integration for workplace collaboration. needed a Google model that matched o-series reasoningStep-by-step logical thinking in AI models — chain-of-thought before answering hard problems. without leaving Vertex or AI Studio.

Media

  • Gemini (language model)
    ImageGemini (language model)

    Google, Public domain, via Wikimedia Commons

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